[INFO] cloning repository https://github.com/tsepanx/dns-resolver-regex
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/tsepanx/dns-resolver-regex" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftsepanx%2Fdns-resolver-regex", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftsepanx%2Fdns-resolver-regex'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9605996227fac6d5736724d35019824c269f0910
[INFO] checking tsepanx/dns-resolver-regex against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftsepanx%2Fdns-resolver-regex" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/tsepanx/dns-resolver-regex
[INFO] finished tweaking git repo https://github.com/tsepanx/dns-resolver-regex
[INFO] tweaked toml for git repo https://github.com/tsepanx/dns-resolver-regex written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/tsepanx/dns-resolver-regex on toolchain 4f260f0f20b3133d20cfb50353c0221943af5796
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/tsepanx/dns-resolver-regex already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d27a964b583294001aa40fd6d13864e8e055ca6f5852f9f60142a0d2dced9516
[INFO] running `Command { std: "docker" "start" "-a" "d27a964b583294001aa40fd6d13864e8e055ca6f5852f9f60142a0d2dced9516", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d27a964b583294001aa40fd6d13864e8e055ca6f5852f9f60142a0d2dced9516", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d27a964b583294001aa40fd6d13864e8e055ca6f5852f9f60142a0d2dced9516", kill_on_drop: false }`
[INFO] [stdout] d27a964b583294001aa40fd6d13864e8e055ca6f5852f9f60142a0d2dced9516
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid -Dunmustuse_in_always_ok" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 92459d208582a575fd304dca6906d80d5896df65ef73deea7f37e97cae071326
[INFO] running `Command { std: "docker" "start" "-a" "92459d208582a575fd304dca6906d80d5896df65ef73deea7f37e97cae071326", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.149
[INFO] [stderr]     Checking memchr v2.6.4
[INFO] [stderr]     Checking predicates-core v1.0.6
[INFO] [stderr]     Checking either v1.9.0
[INFO] [stderr]    Compiling thiserror v1.0.50
[INFO] [stderr]     Checking termtree v0.4.1
[INFO] [stderr]    Compiling proc-macro2 v1.0.69
[INFO] [stderr]    Compiling indexmap v1.9.3
[INFO] [stderr]     Checking downcast v0.11.0
[INFO] [stderr]     Checking fragile v2.0.0
[INFO] [stderr]     Checking float-cmp v0.9.0
[INFO] [stderr]     Checking predicates-tree v1.0.9
[INFO] [stderr]     Checking itertools v0.10.5
[INFO] [stderr]     Checking aho-corasick v1.1.2
[INFO] [stderr]    Compiling quote v1.0.33
[INFO] [stderr]     Checking getrandom v0.2.10
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling syn v2.0.39
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking regex-automata v0.4.3
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]    Compiling thiserror-impl v1.0.50
[INFO] [stderr]     Checking dns-message-parser v0.7.0
[INFO] [stderr]     Checking regex v1.10.2
[INFO] [stderr]     Checking predicates v2.1.5
[INFO] [stderr]    Compiling parameterized-macro v1.1.0
[INFO] [stderr]    Compiling mockall_derive v0.11.4
[INFO] [stderr]     Checking parameterized v1.1.0
[INFO] [stderr]     Checking mockall v0.11.4
[INFO] [stderr]     Checking proj2 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait `BytesOperations` is never used
[INFO] [stdout]   --> src/my_bytes.rs:11:7
[INFO] [stdout]    |
[INFO] [stdout] 11 | trait BytesOperations {}
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/my_bytes.rs:59:9
[INFO] [stdout]    |
[INFO] [stdout] 59 |         ";".parse().unwrap()
[INFO] [stdout]    |         ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `proj2` (lib test) due to 1 previous error; 1 warning emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: trait `BytesOperations` is never used
[INFO] [stdout]   --> src/my_bytes.rs:11:7
[INFO] [stdout]    |
[INFO] [stdout] 11 | trait BytesOperations {}
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/my_bytes.rs:59:9
[INFO] [stdout]    |
[INFO] [stdout] 59 |         ";".parse().unwrap()
[INFO] [stdout]    |         ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `proj2` (lib) due to 1 previous error; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "92459d208582a575fd304dca6906d80d5896df65ef73deea7f37e97cae071326", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "92459d208582a575fd304dca6906d80d5896df65ef73deea7f37e97cae071326", kill_on_drop: false }`
[INFO] [stdout] 92459d208582a575fd304dca6906d80d5896df65ef73deea7f37e97cae071326